package com.xds.gulimall.product.service.impl;

import com.xds.gulimall.product.entity.SkuImagesEntity;
import com.xds.gulimall.product.entity.SpuInfoDescEntity;
import com.xds.gulimall.product.service.*;
import com.xds.gulimall.product.vo.html.SkuItemVo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.math.BigDecimal;
import java.util.List;
import java.util.Map;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.ThreadPoolExecutor;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.xds.common.utils.PageUtils;
import com.xds.common.utils.Query;

import com.xds.gulimall.product.dao.SkuInfoDao;
import com.xds.gulimall.product.entity.SkuInfoEntity;
import org.springframework.util.StringUtils;


@Service("skuInfoService")
public class SkuInfoServiceImpl extends ServiceImpl<SkuInfoDao, SkuInfoEntity> implements SkuInfoService {
    @Autowired
    private    SkuImagesService imagesService;
    @Autowired
    private SpuInfoDescService spuInfoDescService;
    @Autowired
    private AttrGroupService attrGroupService;
    @Autowired
    private SkuSaleAttrValueService skuSaleAttrValueService;
    @Autowired
    ThreadPoolExecutor executor;

    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<SkuInfoEntity> page = this.page(
                new Query<SkuInfoEntity>().getPage(params),
                new QueryWrapper<SkuInfoEntity>()
        );

        return new PageUtils(page);
    }

    @Override
    public void saveSkuInfo(SkuInfoEntity skuInfoEntity) {
        this.baseMapper.insert(skuInfoEntity);
    }

    @Override
    public PageUtils queryPageByCondition(Map<String, Object> params) {
        QueryWrapper<SkuInfoEntity> wrapper = new QueryWrapper<>();
        /**
         * key:
         * catelogId: 225
         * brandId: 21
         * min: 0
         * max: 0
         */
        String key = (String) params.get("key");
        if (!StringUtils.isEmpty(key)) {
            wrapper.and((w) -> {
                w.eq("sku_id", key).or().like("sku_name", key);
            });
        }

        String catelogId = (String) params.get("catelogId");
        if (!StringUtils.isEmpty(catelogId)&& !"0".equalsIgnoreCase(catelogId)) {
            wrapper.eq("catalog_id", catelogId);
        }

        String brandId = (String) params.get("brandId");
        if (!StringUtils.isEmpty(brandId)&&!"0".equalsIgnoreCase(brandId)) {
            wrapper.eq("brand_id", brandId);
        }

        String min = (String) params.get("min");
        if (!StringUtils.isEmpty(min)) {
            wrapper.ge("price", min);
        }

        String max = (String) params.get("max");
        if (!StringUtils.isEmpty(max)) {
            try {
                BigDecimal bigDecimal = new BigDecimal(max);
                if (bigDecimal.compareTo(BigDecimal.ZERO) == 1) {
                    wrapper.le("price", max);

                }
                }catch(Exception e){

                }

            }
            IPage<SkuInfoEntity> page = this.page(
                    new Query<SkuInfoEntity>().getPage(params), wrapper

            );

            return new PageUtils(page);
        }

    @Override
    public List<SkuInfoEntity> getSkusBySouId(Long spuId) {
        List<SkuInfoEntity> skuInfoEntities = this.list(new QueryWrapper<SkuInfoEntity>().eq("spu_id", spuId));
        return skuInfoEntities;
    }

    @Override
    public SkuItemVo item(Long skuId) throws ExecutionException, InterruptedException {
        SkuItemVo skuItemVo=new SkuItemVo();
        CompletableFuture<SkuInfoEntity> infoFuture = CompletableFuture.supplyAsync(() -> {
            //1.sku基本信息
            SkuInfoEntity skuInfo = getById(skuId);
            skuItemVo.setSkuInfo(skuInfo);
            return skuInfo;
        }, executor);
        CompletableFuture<Void> saleAttrFuture = infoFuture.thenAcceptAsync((res) -> {
            if (res.getSkuId() != null) {
                //3.获取spu的销售属性组合
                List<SkuItemVo.SkuItemSaleAttrVo> saleAttrVos = skuSaleAttrValueService.getSaleAttrsBySpuId(res.getSpuId());
                skuItemVo.setSaleAttr(saleAttrVos);
            }
        }, executor);
        CompletableFuture<Void> descFuture = infoFuture.thenAcceptAsync(res -> {
            if (res.getSkuId() != null) {
                //4.获取spu的介绍
                SpuInfoDescEntity spuInfoDescEntity = spuInfoDescService.getById(res.getSpuId());
                skuItemVo.setSpuInfoDesc(spuInfoDescEntity);
            }
        }, executor);
        CompletableFuture<Void> baseFuture = infoFuture.thenAcceptAsync(res -> {
            if (res.getSkuId() != null) {

                //5.获取spu的规格参数信息
                List<SkuItemVo.SpuItemAttrGroupVo> attrGroupVos = attrGroupService.getAttrGroupWithAttrsBySpuId(res.getSpuId(), res.getCatalogId());
                skuItemVo.setGroupAttrs(attrGroupVos);
            }
        }, executor);
        //2.sku的图片信息
        CompletableFuture<Void> imageFuture = CompletableFuture.runAsync(() -> {
            List<SkuImagesEntity> images = imagesService.list(new QueryWrapper<SkuImagesEntity>().eq("sku_id", skuId));
            skuItemVo.setImages(images);
        }, executor);
        //等待所有任务都完成
        CompletableFuture.allOf(saleAttrFuture,descFuture,baseFuture,imageFuture).get();
        return skuItemVo;
    }

}
